The
more accurate position-fix information your boat's electronics receive,
the better able you are to plot and navigate your boat's course.

JRC's
latest WAAS/GPS-112 (pictured here) and WAAS/DGPS-212
antennas are designed to decipher (in real-time) which position information
source (GPS, DGPS, WAAS) is providing the most accurate data and send
it to any display, such as your boat's radar, plotter, fishfinder,
and the like. Earlier versions of these antennas were strictly GPS-capable
or DGPS-capable.

The
WAAS/GPS-112 offers accuracy to within 45 feet, while the WAAS/DGPS-212
should bring you within 15 feet of your target. Both are available through
most major marine electronics dealers and have a suggested retail price
of $379 and $759, respectively.